Bolt for burglar-proof safes.



No. 863,584. PATENTBD. AUG. zo, 1907. 'l G. E. BLEGHSUHMIDT.

IBOLT FoR-BURGLAR PROOF sAFEs.

AAAAAAAAAAAAAAAAAAA 20,1907.

UNITED STATES PATENT QEFIQE.

CHARLES E. BLECHSCHMIDT, OF CONNERSVILLE, INDIAXA.

BOLT FOR URGLAR-PROOF SAFES.

Specification of Letters Patent.

Patented Aug. 2o, 1907.

Application filed May 20.1907. Serial No. 374.669.

To all whom it may concern:

Be it known that I, CHARLES E. BLECHsCHMInT, a citizen ofthe UnitedStates, residing in Connersville, in the county of Fayette andState ofIndiana, lia-veinvented certain 'new and useful Improvements in Boltsfor BurglarfProof Safes, of which the following is a full, clear, andexact description, reference being had to the accompanying drawings,forming part of this speciagain to a normal position unshattered and ina normal condition. A 1

I have illustrated my improved bolt construction in connection with anordinary circular manganese steel bank safe, butit will beevident thatmy improvement of bolt may be employed in the construction of any safeWhere it is desired to obtain the resilient action hereinafterdescribed:

In the drawings: Figure l is a front elevation of an ordinary circularbank safe. Fig. 2- is a central vertical section of same. Fig. 3- is arear elevation of the door of the safe. Fig. 4- is an enlarged detailedView in perspective of asmall portion 'of the door showing one of myimproved bolts. i

1 is the shell of the ordinary circular bank safe,

,usually constructed, in a singlepiece, of cast manganese v steel, saythree or more inches in thickness, and provided with the standard 2, fora base,' with rollers 3-3 for convenience in moving the safe from placeto place. A beveled circular opening is left in the front wall of thecasting for access to the interior, and provided With a circular door -4to fit the opening, and the joint between the door and the safe wall isusually a ground joint. The door is swung on an ordinary crane hingeconsisting of a yoke h5, pivoted on the' pintle 6 secured .on theexterior of the safe at the side of the door opening, and the innerendsof the yoke are pivoted on studs attached to lugs'7--7 secured toY thedoor.

For opening and closing the door in the construction illustrated, Iprovide a tapered arbor -8 controlled by handle `9 which passes througha central opening cast in the door and is secured to the circular plate10 on the rear surface of the door. This plate 10 is pivotally connectedby the curved links 11 to the bolts 12, these bolts passing throughsuitable slots in the bolt frame 13 which is cast, a ilange, iniegralWilli the door. The movement of the arbor and ille plato 10 iscontrolled by an ordinary permunuion lock actuated by the handle or knoblslin connection with the usual dial plate 15, or the bolts may bethrown by any other of the Well known devices controlled in any f otherWell known Way.

It will be -understood'that the .particular kind of safe and theparticular construction-of door and locks for controlling same, have nopart in the present invention, Which relates to the construction of thebolt or bolts employed to` secure the door in place.

In Fig. 4, I have illustrated-this novel construction .of bolt, and itconsists of a plurality of resilientrplates 1.6-16 of the proper sizeand shape to form when placed on top of each other, a substantial boltor fastening device of thel size required. These plates 16 Which arepreferably made of spring steel, are merely laid on each other withoutbeing fastened together except Where pivoted by the bolt 17 to the link11. The bolt frame 13 is formed with the slot 18 through which thekspring plates are passed and by which they are held together. In ordert0 obtain somewhat better results,

'I prefer to give a slight bend to these bolt plates as 4Shown at 18,although this may not be necessary in allV cases, and where it is notdesirable to use the construction of bolt frame illustrated in thepresent case, with the slots through same for holding and guiding thebolt as an entirety the plates may be held together by a thin band oimetal. i

With bolts of the construction illustrated, the explosive orce of anycharge oi' nitroglycerin or other high explosive pumped in around thedoor, for the purpose of'blowing the door open, causes the door tospring away from the safe Walls a short distance against the resilientforce of the bolts Without shearing off or shattering the bolts, so thatthey immediately spring back to normal position holding 'the doorlocked. Such is the resilient effect of the bolts, that no charge ofhigh explosive which-can be inserted around the door is sufficient toshatter the bolts.

.i Having thusA described my invetionn what I claim as new and desire tosecure by Letters Patent, isz- 1. A'bolt for safes comprising aplurality of resilient plates of suitable material superimposed to forma resilient body of the size required for the pui-pose. specified. 2. Abolt i'or safes comprising a plurality of springl steel plates slightlybowed to give greater' resiliency, said platesbeing superimposed to forma resilient body of the size required for the purpose speciiied4 3. In abolt construction for safes, the combination with the door, ol' aplurality of resilient plates of suitable material superimposed to forma resilient bolt with means for supportingl and holding the bolt inalinement on the door.

4. In a bolt construction lor safes, the combination with the doorprovided with a bolt frame on its inner surface, with slots in theframe, and a plurality of resilient plates of suitable materialsuperimposed to form bolts, said bolts passing through and held inposition by said slots. t 5. In a circular bank safe, the combination,with a circular door, provided with a flange on its inner surface toform a bolt frame, a rotatable plate mounted within said flange, withmeans for actuating same from ivthout the safe, a series of links pivoted on said plate; and a plurality of resilient plates of suitablematerial superimposed to `form bolts, with slots in the bolt framethrough which said bolts pass and pivoted connegtion -for said bolts tothe 'outer ends of said links, whereby said bolts may be thrownV

